Watch case



FIG. 1 is a front elevation of a watch case showing my new design;

FIG. 2 is a rear elevation thereof;

FIG. 3 shows a side view from the right of the watch case of FIG. 1;

FIG. 4 shows a plan view from below the watch case of FIG. 1; and,

FIG. 5 shows a side view from the left of the watch case of FIG. 1.

The broken lines in the drawings are used to show portions of the watch case that do not form part of the claimed design. 

The ornamental design for a watch case, as shown and described. 